JP4315970B2 - Absorbent articles - Google Patents

Absorbent articles Download PDF

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Publication number
JP4315970B2
JP4315970B2 JP2006274128A JP2006274128A JP4315970B2 JP 4315970 B2 JP4315970 B2 JP 4315970B2 JP 2006274128 A JP2006274128 A JP 2006274128A JP 2006274128 A JP2006274128 A JP 2006274128A JP 4315970 B2 JP4315970 B2 JP 4315970B2
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Prior art keywords
sanitary napkin
absorbent article
rear
groove
contact surface
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JP2007007456A (en
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稔 中西
美次 濱島
哲也 草川
泰生 豊島
幸 近藤
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花王株式会社
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Description

  The present invention relates to an absorbent article such as a sanitary napkin or an incontinence pad, and more particularly, to an absorbent article excellent in leakage prevention.

  Conventionally, a liquid-permeable skin contact surface, a liquid-impermeable non-skin contact surface, such as a sanitary napkin, an incontinence pad, a panty liner, a paper diaper, the skin contact surface and the non-skin contact Various absorptive articles which are provided with an absorption part interposed between contact surfaces and are formed substantially vertically have been proposed. Absorbent articles used for the purpose of absorbing a large amount of body fluid at bedtime or for a long time are absorbed or absorbed by the body fluid due to the influence of the posture of the user such as sideways or on the back or a large amount of body fluid. It may leak by flowing on the surface of the article, or may ooze out from the end along the absorbent body. Moreover, in such an absorbent article, there are many leaks especially in a rear part or a horizontal direction.

Therefore, as described in Japanese Utility Model Laid-Open No. 56-59013, Japanese Utility Model Laid-Open No. 2-88625, Japanese Patent Application Laid-Open No. 1-111102, and Japanese Patent Application Laid-Open No. 64-49555, absorbent articles are conventionally used. There has been proposed a technique for avoiding leakage by providing a groove in the body to block body fluid or control diffusivity. However , in these conventional techniques, there is still a case where it is not possible to sufficiently avoid leakage, particularly leakage at the rear portion.

Japanese Utility Model Publication No. 56-59013 Japanese Utility Model Publication 2-88625 Japanese Patent Laid-Open No. 1-1111002 JP-A-64-49555

  Accordingly, an object of the present invention is to provide an absorbent article that can reliably prevent side leakage and rear leakage.

  As a result of various studies to solve the above problems, the present inventors have found that an absorbent article in which a groove having a specific shape is arranged at a specific position can achieve the above-described object.

The present invention has been made on the basis of the above knowledge, and is provided between a liquid-permeable skin contact surface, a liquid-impermeable non-skin contact surface, and the skin contact surface and the non-skin contact surface. In the absorbent article that is substantially vertically formed, the absorption surface is provided on the skin contact surface of the excretion part contact part that contacts the body fluid excretion part of the wearer when worn. It has a pair of front grooves formed along the longitudinal direction of the absorbent article, and the width direction of the absorbent article on the skin contact surface of the rear part that is in contact with the back side of the wearer at the time of wearing And a plurality of the rear grooves are arranged in series in the longitudinal direction of the absorbent article to provide an absorbent article.

The above-mentioned “a pair of front grooves formed along the longitudinal direction of the absorbent article” only needs to be formed substantially parallel to the longitudinal direction of the absorbent article, and each of the front grooves corresponds to the longitudinal direction of the absorbent article. In addition to the case where they are formed in parallel, when they are formed in a single straight line, when they are formed in a plurality of straight lines such as a pair, etc. The case where it is formed in a curved shape is also included.
The above-mentioned “rear groove formed along the width direction of the absorbent article” only needs to be formed substantially parallel to the width direction of the absorbent article, and the rear groove is formed parallel to the width direction. In addition, the case where it is formed so as to be located outward in the width direction as it goes rearward is included, and when it is formed in a single straight line, it is formed in a plurality of straight lines such as a pair. In the case of being formed, a case of being formed in a curved shape such as one or a pair of plural arcs is also included.

  As described above, the absorbent article of the present invention can well prevent side leakage and back leakage.

It will be specifically described with reference to the accompanying drawings, an embodiment of an absorbent article of the present invention.
The absorbent article of this embodiment is a sanitary napkin shown in FIG. Prior to the description of the present embodiment, various reference embodiments in which the rear groove is disposed differently from the present invention will be described with reference to FIGS. Next, only the points different from the reference embodiment will be described with reference to FIG. 9 for the absorbent article of the present embodiment.
FIG. 1 is a plan view showing a sanitary napkin as a first reference embodiment of the absorbent article of the present invention, FIG. 2 is a plan view of an essential part of the sanitary napkin of FIG. 1, and FIG. It is II sectional drawing of 2. FIG.

As shown in FIG. 1, an absorbent article (a sanitary napkin) 10 according to a first reference embodiment includes a liquid-permeable skin contact surface P, a liquid-impermeable non-skin contact surface, and the skin. An abutting surface P and an absorption part A interposed between the non-skin abutting surface are provided and are formed substantially vertically long.

  More specifically, the skin contact surface P is formed by a liquid permeable top sheet 12, and the non-skin contact surface is formed by a liquid impermeable back sheet. Moreover, the said surface sheet 12 and the said back surface sheet | seat are adhere | attached in the longitudinal direction both ends of the sanitary napkin 10. FIG.

Further, the left and right side edges of the top sheet 12 and the back sheet extend outward in the width direction, and wings 14 are formed. On the surface of the backsheet of the wings 14, 14, and adhesive agent is applied, dislocation-preventing portions 14a, 14a are formed, the dislocation-preventing portions 14a, 14a will not release paper or release film or the like (not ).

  About these structures, it is the same as that of the conventional absorbent article, and as the pressure-sensitive adhesive for forming the top sheet 12 and the back sheet, and the anti-slip portions 14a and 14a, generally known ones are particularly used. Can be used without limitation.

Thus, as shown in FIG. 1, the sanitary napkin 10 according to the first reference embodiment has the above-described skin contact of the excretory part abutting part 10a that abuts on the excretory part from which the body fluid of the wearer is excreted at the time of wearing. The skin of the rear portion 10b that has a pair of front grooves 16 and 16 formed along the longitudinal direction of the sanitary napkin 10 on the contact surface P and abuts on the back side of the wearer when worn. The abutment surface P has a rear groove 15 formed along the width direction of the sanitary napkin 10. The distance L between the rearmost portion 15a of the rear groove 15 and the rear end of the absorbing portion A is 10 to 50 mm, and the innermost portions of the pair of front grooves 16 and 16 in the width direction of the sanitary napkin 10 are connected to each other. The distance W 1 is shorter than the distance W 2 between the outermost portions in the width direction of the sanitary napkin 10 in the rear groove 15.
The distance L needs to be 10 to 50 mm, preferably 10 to 30 mm. If it is less than 10 mm, the absorbable amount of bodily fluid on the rear side of the groove is too small, and the bodily fluid that has once flowed rearward from the rear groove 15 and leaked may not be absorbed by the absorbent portion A and leak from the absorbent article 1. In the case of 50 mm or more, the distance between the rear groove 15 and the excretion position may be too close, the amount of body fluid reaching the rear groove 15 increases, and the body fluid easily gets over the rear groove 15 and flows backward. There is a risk of leakage.

More specifically, in the sanitary napkin 10 of the first reference embodiment, the rear groove 15 is formed in an arc shape along the rear end of the absorption part A and is formed in the width direction of the sanitary napkin 10. And a pair of side portions 15c and 15c extending linearly forward from the rear portion 15b along both side edges in the longitudinal direction of the sanitary napkin 10.

The depth D of the rear groove 15 is preferably 1 to 10 mm, and more preferably 3 to 8 mm. If the depth D of the rear groove 15 and the front groove 16 is less than 1 mm, it is difficult to obtain the effect of blocking body fluid flowing on the surface, and if it exceeds 10 mm, the wearer is uncomfortable.
Also, the sanitary napkin 10, the thickness T 1 at the portion formed of the rear groove 15, the ratio T 1 / T 2 with respect to the second thickness T 2 at the portion not formed with the groove, 0.05 0.7 is preferable and 0.1 to 0.5 is more preferable.
When T 1 / T 2 is less than 0.05, a sanitary napkin having a preferable thickness T 2 as the sanitary napkin 10 (the thickness T 2 of the sanitary napkin 10 is preferably 1.5 to 15 mm, and preferably 2 to 10 mm. More preferably, when the rear groove 15 and the front groove 16 are formed by pressing, the rear groove 15 and the front groove 16 may become too hard, and the fit may be lost. A sufficient effect of blocking the flow of body fluid in A cannot be obtained, which is not preferable.

Hereinafter, a preferable groove structure will be described.
As shown in FIGS. 2 and 3, the rear groove 15 is subjected to groove processing for forming a plurality of rhombus-shaped small grooves 15d discontinuously along the predetermined shape from the skin contact surface P side. It is formed to a two-stage depth in which the space between the small grooves 15d is continuously recessed from the skin contact surface P. Thus, small grooves 15d and small grooves 15d between continuously recessed than the skin contact surface of P, by forming a two-stage depth, the deeper and while the groove portion depth D of the rear groove 15 flexible high holds, it is possible to obtain good fit. The size of the small groove 15d is preferably 1 to 100 mm 2 . When it is smaller than 1 mm 2, the effect of blocking body fluid is small, and when it exceeds 100 mm 2 , preferable flexibility cannot be obtained. Moreover, it is preferable that the pitch of each small groove 15d shall be 0.5-5 mm. If it is less than 0.5 mm, preferable flexibility and skin contact property cannot be obtained, and if it exceeds 5 mm, a portion that does not sink between the small grooves 15d is generated, and the leakage preventing effect is reduced.
Further, in the groove processing in which the small grooves 15d are formed discontinuously, the ratio T 3 / T 2 of the thickness T 3 between the small grooves 15d of the sanitary napkin 10 to the thickness T 2 in the portion where the grooves are not formed is From the viewpoint of body fluid blocking effect and wearing feeling, 0.2 to 0.8 is preferable, and 0.3 to 0.6 is more preferable.
Further, the ratio T 1 / T 3 of the thickness T 1 of the sanitary napkin 10 where the small grooves 15d are formed to the thickness T 3 between the small grooves 15d is 0 from the damming effect of body fluid and the wearing feeling. .1 to 0.8 is preferable, and 0.3 to 0.7 is more preferable.
In the groove processing, an embossing roll having a rhombus-shaped embossed convex portion is pressed from a skin contact surface side to a conventionally known sanitary napkin having no groove to heat and compress the sanitary napkin in the thickness direction. Is.

The pair of front grooves 16, 16 are formed symmetrically in a convex arc shape toward the inside in the longitudinal direction of the sanitary napkin 10 in plan view. The distance W 1 between the innermost portions of the front grooves 16 and 16 in the width direction of the sanitary napkin 10 is 20 to 50 mm, and between the outermost portions of the rear grooves 15 in the width direction of the sanitary napkin 10. It is shorter than the distance W 2.
The pair of front grooves 16 and 16 are formed by the same groove processing as that of the rear groove 15.
The front grooves 16 and 16 are connected one by one to the front ends of the two side portions 15c and 15c of the rear groove 15, and the front grooves 16 and 16 and the rear groove 15 are formed in a single groove shape. Is formed.
The preferred depth D of the front grooves 16, 16, the ratio of the thickness of the sanitary napkin in the portion where the front grooves 16, 16 are formed to the thickness of the sanitary napkin in the portion where no groove is formed, The preferred groove processing technique is the same as that for the rear groove 15.

  The absorbent part A can be constituted by using pulp, paper, non-woven fabric and superabsorbent polymer that have been used to form absorbent parts of absorbent articles, but contains thermoplastic fibers. However, it is preferable in that the rear groove 15 and the front grooves 16 and 16 are formed and held in a more stable state.

When the thermoplastic fibers are bonded to each other in the absorbent sheet 13, the thermoplastic fibers keep the shape of the absorbent sheet 13 stable when absorbing body fluid, and a preferred mounting form of the sanitary napkin 10 is provided. This is preferable because the sanitary napkin 1 is maintained and is restored to its original state when the pressure is released, and the sanitary napkin 1 is kept stable without twisting.
The thermoplastic fiber is not particularly limited as long as the fibers are bonded to each other by heating. Specifically, polyethylene, polypropylene, polyester fiber, polyethylene-polyester composite fiber, polypropylene-polyester composite fiber, etc. Are preferably used. Further, dissolved in hot water, polyvinyl alcohol fibers or the like fibers to each other by drying binds can also be preferably used.

  Moreover, although the said absorption sheet 13 may be formed only with the said thermoplastic fiber, you may mix hydrophilic fibers, such as flap pulp and rayon, a well-known superabsorbent polymer, etc. The blending amount of the thermoplastic fibers when mixing these is preferably 1 to 30% by weight with respect to the entire absorbent sheet 13.

The sanitary napkin 10 according to the present embodiment is mounted and used in the same manner as a conventional normal sanitary napkin with the excretory part contact portion 10a disposed between the crotch.
In the mounted state, a force in the width direction is applied to the excretory part contact part 10a of the sanitary napkin 10 from the side, and the excretion part contact part 10a is bent at the front grooves 16, 16, and the front groove 16, Between 16 becomes the cross-section arch shape which protruded to the skin contact surface P side, and it contact | abuts in the state fitted well between a wearer's crotch.
And the bodily fluid from a wearer is excreted by the center part of the excretion part contact part 10a.

The excreted body fluid is absorbed into the absorbent sheet 13 while moving on the skin contact surface P from the central portion of the excretory part contact part 10a, and is diffused outward.
The body fluid that has moved on the skin contact surface P and reaches the front groove 16 once stays in the front grooves 16, 16, is absorbed from the front grooves 16, 16 through the surface sheet 12 , and is retained by the absorbent sheet 13. The The body fluid that has not been absorbed by the absorbent sheet 13 is prevented from spreading in the width direction by the front grooves 16, 16, migrated and diffused in the longitudinal direction of the sanitary napkin 10, and particularly migrated rearward during supine or the like.
In addition, the body fluid that has reached the rear groove 15 directly or along the front grooves 16, 16 from the central portion of the excretory part contact portion 10a directly on the skin contact surface P stays in the rear groove 15, It is absorbed and held by the absorbent sheet 13 from the rear groove 15 through the surface sheet 12. And when there is a large amount of body fluid reaching the rear groove 15 or when the wearer moves vigorously, or when the body fluid moves at a high speed on the top sheet, some body fluid overflows from the rear groove 15, The sanitary napkin 10 is absorbed and held by the absorbent sheet 13 through the surface sheet 12 further behind.
When the body fluid that has moved through the absorption part A reaches the front grooves 16, 16 and the rear groove 15, the body fluid is more outward than the front grooves 16, 16 and the rear groove 15 by the front grooves 16, 16 and the rear groove 15. And is absorbed and held by the absorbent sheet 13 around the front grooves 16 and 16 and the rear groove 15.

Thus, according to the sanitary napkin 10 of the first reference embodiment, the pair of front grooves 16 and 16 are formed in the longitudinal direction of the sanitary napkin 10 on the skin contact surface P of the excretory part contact part 10a. Therefore, the transition of the body fluid in the width direction on the skin contact surface P and in the absorption part A is blocked by the front grooves 16 and 16, and side leakage is prevented. Moreover, the transition of the body fluid to the rear part 10b is favorably promoted at the time of supine, and the side leakage of the body fluid is well prevented even at the supine.
According to the sanitary napkin 10 of the first reference embodiment, the pair of front grooves 16 and 16 are formed along the longitudinal direction of the sanitary napkin 10 on the skin contact surface P of the excretory part contact part 10a. since excretion abutting part 10a becomes the section arched satisfactorily fits into the wearer when worn, excreted body fluid is absorbed from reliably excreted abutting part 10a, front grooves 16, 16 and the rear The amount of body fluid that reaches the groove 15 is reduced.
According to the sanitary napkin 10 of the first reference embodiment, the distance W 1 between the innermost portions in the width direction of the sanitary napkin 10 of the pair of front grooves 16, 16 is the width of the sanitary napkin 10 of the rear groove 15. Since the distance between the outermost portions in the direction is shorter than the distance W 2, the body fluid that has been prevented from shifting in the width direction in the front grooves 16, 16 is reliably guided to the rear groove 15, and is surely rearward in the rear groove 15. Leakage can be prevented.

Further, according to the sanitary napkin 10 of the first reference embodiment, the front groove 16 and 16, in plan view, is formed in a circular arc shape symmetrically convex toward the longitudinal direction inner side of the sanitary napkin 10 In addition, since the distance W 1 between the innermost portions in the width direction of the sanitary napkin 10 of the front grooves 16 and 16 is 20 to 50 mm, the excretory portion contact portion 10a is particularly good at the time of wearing. fit to the wearer, excreted body fluid is absorbed from the more reliably excreted abutting part 10a, the amount of fluid reaching the front groove 16, 16 and the rear groove 15 is suppressed even less.
Furthermore, according to the sanitary napkin 10 of the first reference embodiment, the distance W 1 between the innermost portions in the width direction of the front grooves 16, 16 is 20 to 50 mm. Since the absorption part A is arranged on the outer side in the width direction, the body fluid overflowing from the front grooves 16 and 16 is absorbed by the absorption part A before reaching the side edges along the longitudinal direction of the sanitary napkin 10, and side leakage occurs. Avoided.

According to the sanitary napkin 10 of the first reference embodiment, the rear portion 15b of the rear groove 15 is formed in the rear portion 10b in the width direction of the sanitary napkin 10, so that the skin contact surface P is absorbed and absorbed. Transition of the body fluid in the part A in the longitudinal direction is blocked by the rear part 15b of the rear groove 15, and rear leakage is prevented.
According to the sanitary napkin 10 of the first reference embodiment, since the distance L between the rearmost part 15a of the rear groove 15 and the rear end of the absorption part A is 10 to 50 mm, body fluid overflowing from the rear groove 15 Is absorbed by the absorption part A before reaching the rear end of the sanitary napkin 10, and rear leakage is avoided.

According to the sanitary napkin 10 of the first reference embodiment, the side portions 15c and 15c of the rear groove 15 prevent side leakage even at the rear portion 10b.
According to the sanitary napkin 10 of the first reference embodiment, the rear groove 15 is provided with the side portions 15c and 15c along the both side edges in the longitudinal direction of the sanitary napkin 10, so that the rear portion 10b is also mounted at the time of mounting. well and fits into people, excreted body fluid can be avoided to migrate transmitted to the wearer's skin, the amount of fluid reaching the rear portion 15b of the rear groove 15 is suppressed small.
According to the sanitary napkin 10 of the first reference embodiment, since the rear groove 15 is connected to the front grooves 16 and 16, leakage of bodily fluids is avoided in a wide range.
Further, according to the sanitary napkin 10 of the first reference embodiment, the rear groove 15, and the front groove 16 and 16, since it is formed by continuous multiple small grooves in a discontinuous, longitudinal and rear portions Good flexibility is ensured in the width direction, and rear leakage and side leakage are avoided by better fit.
According to the sanitary napkin 10 of the first reference embodiment, since the rear groove 15 and the front grooves 16, 16 are all formed by applying the same groove processing from the skin contact surface P side, all in one step. It is possible to form a groove.

Next, a second reference embodiment of the absorbent article of the present invention will be specifically described with reference to the drawings. In the second reference embodiment, the same members as those in the first reference embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.
FIG. 4 is a perspective view showing a sanitary napkin as a second reference embodiment of the absorbent article of the present invention.

In the sanitary napkin 20 of the second reference embodiment, as shown in FIG. 4, a pair of the rear grooves 25, 25 are formed on the left and right except for the central portion in the width direction of the sanitary napkin 20. One of these rear grooves 25, 25 is connected to each front groove 16, 16. Rearmost portion 25a, the distance W 3 of to what 25a of the rear grooves 25 and 25, to prevent leakage to the rear well is preferably within 3 cm, more preferably within 1 cm.
Except that the rear groove 25 is in two without being disposed at the central portion in the widthwise direction is the same as the first reference embodiment described above.
Also in the second reference embodiment, the same operations and effects as in the first reference embodiment described above can be obtained.
In particular, according to the second reference embodiment, the rear groove 25 is formed in a pair with the rearmost portions 25a, 25a spaced apart from each other, so that the space between the rearmost portions 25a, 25a rises when worn, It is possible to obtain an effect that fits to the shape of the material and exhibits excellent leakage prevention and skin contact.

Next, a third reference embodiment of the absorbent article of the present invention will be specifically described with reference to the drawings. In the third reference embodiment, members similar to those in the first reference embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.
FIG. 5 is a perspective view showing a sanitary napkin as a third reference embodiment of the absorbent article of the present invention.

In the sanitary napkin 30 of the third reference embodiment, as shown in FIG. 5, the sanitary napkin 30 is contracted over a predetermined length in the longitudinal direction at both side edges along the longitudinal direction of the sanitary napkin 30. The sanitary napkin 30 is provided with elastic members 37, 37 that make the skin contact surface P side into a concave curved shape.

The third reference embodiment will be described in detail. The elastic members 37 and 37 are fixed between the absorbing portion A and the top sheet 12 in an expanded state, and the elastic members 37 and 37 contract to sanitary napkin. The shape of 30 is a curved shape having a concave shape on the skin contact surface P side.
As the elastic members 37, 37, films such as polyurethane, polybutadiene, rubber such as isoprene, ethylene-vinyl acetate, stretchable polyolefin polymers, fibers, foams, and the like can be used. In order to form the sanitary napkin 30 in a shape that fits the wearer satisfactorily without deteriorating the feeling of wearing, the elastic members 37 and 37 have an elongation rate of 30% and a stress of 10 to 300 gf when stretched. preferable. The stretch rate is the ratio of the length of the stretched and increased length to the natural length. For example, when a stretch with a natural length of 100 cm is stretched to 200 cm , the stretch rate is 100%.
Except that an elastic member 37 is the same as the first reference embodiment described above.

In the third reference embodiment, the same operations and effects as those of the first reference embodiment described above can be obtained.
In particular, according to the sanitary napkin 30 of the third reference embodiment, the sanitary napkin 30 fits the wearer even in the longitudinal direction thereof, so that the body fluid is prevented from being transmitted through the wearer's skin, so that it is better. The functions of the front grooves 16 and 16 and the rear groove 15 are exhibited , and further lateral leakage and rear leakage of body fluids are avoided.

Next, a fourth reference embodiment of the absorbent article of the present invention will be specifically described with reference to the drawings. In the fourth reference embodiment, members similar to those in the first reference embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.
FIG. 6 is a perspective view showing a sanitary napkin as a fourth reference embodiment of the absorbent article of the present invention.

In the sanitary napkin 40 of the fourth reference embodiment, as shown in FIG. 6, a leak-proof wall 48 a is formed at the side edge along the longitudinal direction of the sanitary napkin 40.
The fourth reference embodiment will be described in detail. In the fourth reference embodiment, the sanitary napkin 40 includes a flap 48. The flap 48 is disposed along the side edges along the longitudinal direction of the sanitary napkin 40 has a leakage preventing wall 48a facing the topsheet 12, by the topsheet 12 and the leak-proof surface 48b Side pockets S are formed. Further, the flap 48 has a leak-proof surface 48b disposed in parallel with the skin contact surface P on the top sheet 12 side. The leak-proof surface 48b is provided with a leak-proof surface-holding elastic member 49 so that the leak-proof surface 48b is securely held parallel to the skin contact surface P.
More detailed examples of the flap 48 are described in the absorbent article described in JP-A-8-182702, the absorbent article described in JP-A-8-224271, and JP-A-8-224271. Reference can be made to absorbent articles.
Flap 48 is provided with a fourth reference embodiment, except that the leakage preventing side holding elastic member 49 that the leakage preventing walls 48a and the leakage preventing surface 48b is formed and the leakage preventing surface 48b is disposed is the same as the first reference embodiment described above.

In the fourth reference embodiment, the same operations and effects as those of the first reference embodiment described above can be obtained.
In particular, according to the fourth reference embodiment, side leakage is reliably avoided by the leakage preventing wall 48a formed by the flap. Further, since the side pocket S is formed by folding back from the leak-proof wall 48a, side leakage is also avoided by this side pocket S. Further, since the leakage preventing surface 48 b is held in the state in which spread along the skin of the wearer, the shape of the side pocket S is stably held, also according to the absorption unit A is suppressed.

Next, a fifth reference embodiment of the absorbent article of the present invention will be specifically described with reference to the drawings. In the fifth reference embodiment, the same members as those in the first reference embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.
FIG. 7 is a plan view showing a male incontinence pad as a fifth reference embodiment of the absorbent article of the present invention.

As shown in FIG. 7, the male incontinence pad 50 of the fifth reference embodiment includes a top sheet 52 that forms a skin contact surface P, a back sheet that forms a non-skin contact surface, and the skin contact. The absorption part A ′ interposed between the surface P and the non-skin contact surface has a cross-section hourglass shape in which the central part C in the longitudinal direction is constricted, and the excretory part contact is in front of the central part C. It is part 50a.

The male incontinence pad 50 of the fifth reference embodiment is mounted in a state where the central portion C is in contact with the crotch and the front groove 16 is disposed in front of the wearer. In the mounted state, a force in the width direction from the side is applied to the excretory part contact portion 50a, the excretory portion abutting portion 50a is bent in the front groove 16, 16, skin between the front groove 16, 16 equivalents It becomes a cross-sectional arch shape raised on the contact surface P side, and comes into contact with the wearer in a well-fitted state.
As in the first reference embodiment, rear leakage and side leakage are avoided. Thus, in the absorbent article excretory abutment it is not disposed in the crotch portion as in the first reference embodiment to the fourth reference embodiment, to obtain a good fit with the front groove and the rear groove, and Rear leakage and side leakage can be avoided.

Incidentally, reference embodiment of the absorbent article of the present invention, any not limited to the above-described embodiment, and can be seed s changes.
For example, the rear groove in the reference embodiment of the absorbent article of the present invention is not limited to a single continuous groove from the front end to the rear end as in each of the reference embodiments described above, as shown in FIG. It can also be set as the rear groove 65 formed discontinuously in FIG.
Next, a sanitary napkin which is an embodiment of the absorbent article of the present invention will be described with reference to FIG. In this embodiment, only points different from the first reference embodiment will be described, and description of the same points will be omitted. Therefore, in the present embodiment, the description of the first reference embodiment is applied as appropriate.
In the sanitary napkin 70 of the present embodiment, as shown in FIG. 9, the rear groove 75 has a substantially square shape with the apex arranged at the center in the width direction. By arranging a plurality of serially the rear groove 75 in the longitudinal direction of the sanitary napkin 70, the first reference embodiment of the rear groove 15 and the second lateral portion 15c in the rear groove 25 of the referential embodiment, Side leakage at the rear portion 10b can also be avoided by the same action as 25c.
In the absorbent article of the present invention, the rear groove is not formed by connecting the small grooves as described above, but may be a rear groove having a uniform depth that is continuously grooved. Moreover, when it forms by the discontinuous several small groove | channel divided | segmented in the longitudinal direction like the above-mentioned embodiment or reference embodiment , the shape of a small groove, etc. are not specifically limited.
As shown in FIG. 10, the front grooves 16 and 16 and the rear groove 85 may not be continuous, or as shown in FIG. 11, a front groove 99 that connects the front ends of the front grooves may be provided.

Moreover, although an absorption part may be comprised only with an absorption sheet like the above-mentioned embodiment or reference embodiment, it is used together with another absorption sheet, a superabsorbent polymer, another absorption member, or a thicker absorber. Can also be configured. In addition, it is preferable that the thickness of the absorption part A shall be 1.5-15 mm.
As shown in FIGS. 8 to 10, the absorbent article may be a sanitary napkin 60, 70, 80 without wings, an incontinence pad 50, a panty liner, a paper diaper or the like as shown in FIG. it can.

It is a top view which shows the sanitary napkin as 1st reference embodiment of the absorbent article of this invention. It is a principal part top view which shows the sanitary napkin of FIG. It is II sectional drawing of FIG. It is a top view which shows the sanitary napkin as 2nd reference embodiment of the absorbent article of this invention. It is a perspective view which shows the sanitary napkin as 3rd reference embodiment of the absorbent article of this invention. It is a cross-sectional perspective view which shows the sanitary napkin as 4th reference embodiment of the absorbent article of this invention. It is a top view which shows the male incontinence pad as 5th reference embodiment of the absorbent article of this invention. It is a top view which shows the sanitary napkin as other reference embodiment of the absorbent article of this invention. It is a top view which shows the sanitary napkin as one Embodiment of the absorbent article of this invention. It is a top view which shows the sanitary napkin as other reference embodiment of the absorbent article of this invention. It is a top view which shows the sanitary napkin as other reference embodiment of the absorbent article of this invention.

Explanation of symbols

10 Sanitary napkins (absorbent articles)
DESCRIPTION OF SYMBOLS 10a Excretion part contact part 10b Back part 11 Back surface sheet 12 Top sheet 13 Absorbing sheet 14 Wing 14a Slip stopper 15 Back groove 15a Rearmost part 15b Back part 15c Side part 16 Front groove 20 Sanitary napkin (absorbent article)
25 rear groove 25a rearmost part 25b rear part 25c side part 30 sanitary napkin (absorbent article)
37 Elastic member 40 Sanitary napkin (absorbent article)
48 flaps 48a leak-proof walls 48b leak-proof surfaces 49 leak-proof surface retaining elastic members 50 male incontinence pads (absorbent articles)
50a excretory part contact part 50b rear part 60 sanitary napkin (absorbent article)
65 rear groove 65a rearmost part 65b rear part 65c side part 70 sanitary napkin (absorbent article)
75 rear groove 75a rearmost part 80 sanitary napkin (absorbent article)
85 Rear groove 90 Sanitary napkin (absorbent article)
99 Front groove P Skin contact surface I Non-skin contact surface

Claims (1)

  1. A liquid-permeable skin contact surface, a liquid-impermeable non-skin contact surface, and an absorption part interposed between the skin contact surface and the non-skin contact surface, and substantially vertically long In the absorbent article formed,
    On the skin contact surface of the excretion part contact part that is in contact with the body fluid excretion part of the wearer at the time of wearing, it has a pair of front grooves formed along the longitudinal direction of the absorbent article,
    On the skin contact surface of the rear part that is in contact with the back side of the wearer at the time of wearing, has a rear groove formed along the width direction of the absorbent article,
    The rear groove has a substantially square shape with its apex arranged in the center in the width direction of the absorbent article in plan view, and a plurality of the rear grooves are arranged in series in the longitudinal direction of the absorbent article , and Groove processing for discontinuously forming a plurality of small grooves is performed, and the small grooves and the small grooves are continuously formed at a two-stage depth from the skin contact surface. Absorbent article.
JP2006274128A 2006-10-05 2006-10-05 Absorbent articles Expired - Lifetime JP4315970B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006274128A JP4315970B2 (en) 2006-10-05 2006-10-05 Absorbent articles

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Application Number Priority Date Filing Date Title
JP2006274128A JP4315970B2 (en) 2006-10-05 2006-10-05 Absorbent articles

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JP2003048000 Division

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JP2007007456A JP2007007456A (en) 2007-01-18
JP4315970B2 true JP4315970B2 (en) 2009-08-19

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* Cited by examiner, † Cited by third party
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